文献类型：会议论文

英文题名：An excellent support of Pd catalyst for methane combustion: Thermal-stable Si-doped alumina

作者：Wang, Xiaohong; Guo, Yun; Lu, Guanzhong; Hu, Yu; Jiang, Liangzhu; Guo, Yanglong; Zhang, Zhigang

机构：[1]E China Univ Sci & Technol, Res Inst Ind Catalysis, Adv Mat Lab, Shanghai 200237, Peoples R China

会议论文集：2nd Japan-China Workshop on Environmental Catalysis and Eco-Materials

会议日期：OCT 23-25, 2005

会议地点：Fukuoka, JAPAN

语种：英文

外文关键词：thermal stability; Si-doped alumina; methane combustion; pd catalyst; reverse microemulsion method

摘要：Thermal-stable Si-doped alumina was prepared by the reverse microemulsion method and was used as the support of Pd catalyst for the methane combustion. The physicochemical properties of Si-alumina and catalytic performance of Pd/Si-Al2O3 were characterized by XRD, N-2 adsorption, FT-IR, XPS and methane catalytic combustion. The results indicate that the presence of Si can increase the thermal stability of alumina and promote the coordination state of aluminum from tetrahedral to octahedral, but its content added should be controlled appropriately to 5-6 wt%. Si-doped alumina prepared by the reverse microemulsion method is an excellent support of Pd catalyst for the methane combustion, which can increase both the catalytic activity and thermal stability of the Pd catalyst. The studies also show that the calcination temperature of support affects remarkably the performance of catalyst, and the high thermal stability of support is very important to increase the performance of Pd catalyst for the methane combustion. (C) 2007Elsevier B.V. All rights reserved.